from tkinter import *

print('Введите начальную координату x:')
x=int(input())
print('Введите начальную координату y:')
y=int(input())
print('Введите коэфицент увеличения N:')
N=int(input())

coords = [0,0,  10,0,  10,10,  20,10,  20,20,  10,20,  10,30,  0,30]#12

if N == 0 and x>=0 and x<=500 and y>=0 and y<=500:
   pass
else:
   if N>0 and 0*N+x>=0 and 0*N+y>=0 and 20*N+x<=500 and 20*N+y<=500:
      pass
   else:
      print('Размер фигуры превышает максимальный размер поля')
      exit()

root=Tk()
root.title('ИТ марафон')
root.geometry('500x500')

canvas = Canvas(bg='white', width=500, height=500)
canvas.pack(anchor=CENTER, expand=1)

canvas.create_polygon(coords[0] *N+x, coords[1] *N+y,
                                      coords[2] *N+x, coords[3] *N+y,
                                      coords[4] *N+x, coords[5] *N+y,
                                      coords[6] *N+x, coords[7] *N+y,
                                      coords[8] *N+x, coords[9] *N+y,
                                      coords[10] *N+x, coords[11] *N+y,
                                      coords[12] *N+x, coords[13] *N+y,
                                       coords[14] *N+x, coords[15] *N+y)
root.mainloop()

